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Delphi Drawing Snowflakes on Your Desktop Screen

Snowflakes

It's time for a little winter joy! Amaze your co-workers: *Snowflakes* application randomly draws and moves snowflake images over your Desktop screen.

DBGrid to the Max

Zarko's Delphi Programming Blog

Delphi's NIL value and the Assigned RTL Function

Monday February 8, 2010

in Delphi TIPS :: In Delphi, the NIL constant (also a reserved word) is a pointer value defined as "not-assigned" or "pointer to nothing" or "undetermined". Understand NIL before you use it...

Read the full article to learn about Delphi's NIL value and the Assigned RTL Function.

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Convert a Virtual Key Code to a Character

Thursday February 4, 2010

in Delphi TIPS :: Windows defines special constants for each key the user can press. The virtual-key codes identify various virtual keys. These constants can then be used to refer to the keystroke when using Delphi and Windows API calls or in an OnKeyUp or OnKeyDown event handler.

Read the full article to learn how to Convert a Virtual Key Code to a Character.

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Creating Windows Service Applications Using Delphi

Tuesday February 2, 2010
in Advanced Dephi ::

Service applications take requests from client applications, process those requests, and return information to the client applications. They typically run in the background, without much user input. Services can be automatically started when the computer boots, can be paused and restarted, and do not show any user interface.

Read the full article to learn about Creating Windows Service Applications Using Delphi

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Capturing a Screen Shot of a TWebBrowser Content (Web Page) in Delphi

Monday February 1, 2010

in Delphi VCL :: You might need to programmatically grab the screen shot of the current page loaded in the web browser control. A custom Delphi function WebBrowserScreenShot will capture the contents of a TWebBrower's client area into a JPEG image and save it to a specified file.

Read the full article to learn how to Capture a Screen Shot of a TWebBrowser Content (Web Page) in Delphi.

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